Hard Drive Or Flash Drive?

IT Support Forum Forums Virtualization VMware ESXi Installation Hard Drive Or Flash Drive?

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  • #24


    Should I install ESXi on a traditional hard drive or a flash drive (SD card)? Which is better to install ESXi on and what is the difference between ESXi running on a flash disk vs hard drive?

  • #28


    When choosing whether to install ESXi on a hard drive or SD card, you’re also chosing whether to install ESXi Embedded or ESXi Installable.

    Aside from those OS choices around flash or hard disk options, you also have a 3rd option which is to install ESXi over the network and run it from RAM!

    I have the following opinion about whether to install ESXi to flash or hard disk:

    • If you install to flash, there is no S.M.A.R.T. reporting to warn you of disk failure. This is a problem because when SD cards fail, they don’t just stop working and allow your ESXi host to fail over, they start to slow down and get slower and slower over a period of time, until they suddenly crash.
    • SD cards are cheap to buy, but heck so are small SSD hard disks when you look at the over all cost of a server, a couple of hundred bucks divided across all the users of the VMs hosted on the server is nothing.

    Running your ESXi hosts in RAM would be a better option if you’re trying to get some cheap, fast storage… But then you have to have a PXE server set up to enable this.

    Personally, for me, hard disks are just fine 🙂

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